TM 10-6630-245-13&P
e.
Test Procedure:
WARNING
IRON REAGENT (FERROVER® ) May cause eye and respiratory tract irritation. May cause allergic
respiratory reaction if swallowed or inhaled. Harmful if swallowed. Do not ingest or allow
contact with skin or eyes. Do not breath dust. In case of contact, immediately flush eyes with
water for 15 minutes. Remove contaminated clothing. Wash skin with soap and plenty of water.
In case of ingestion, DO NOT induce vomiting. Give one or two glasses of water. Never give
anything by mouth to an unconscious person. In case of inhalation, remove victim to fresh air.
Give artificial respiration if necessary. Call medic in all cases.
(1)
Collect the water to be tested. Fill each viewing tube(3, fig. 2-8) with a 5 ml sample of the test water. Use
the graduated cylinder(31, fig. 1-1) to measure the 5 ml amount. Add one FerroVer® iron reagent powder
pillow(21) for 5 ml samples to one of the viewing tubes.
NOTE
The viewing adapter is not used for this test.
(2)
Open the hinged door(4, fig. 2-12) on the color
comparator and place the lengthwise viewing
adapter in the storage position(3).
(3)
Replace the cap(1) on the viewing tube to which
the FerroVer® was added. Shake gently. Place
this tube of FerroVer® treated sample in the
opening in the top of the comparator that is
nearest the middle(2). Place the capped tube with
the untreated sample in the other hole(5).
(4)
Wait 2 to 5 minutes. If ferric iron is present, the
treated sample will turn orange. Wait until any
bubbles have settled out.
(5)
Insert the color-standard disk(2, fig. 2-8) with
markings from 1 to 10.0 mg/l. Close the
comparator door(4, fig. 2-12).
(6)
Hold comparator up to a light (window, sky, lamp)
and look through the two side-by-side openings(8)
in the front. Rotate the color standard disk(6) until
the colors seen through the two windows(8)
match.
(7)
Record the reading as seen through the scale
window(7) in the front of the comparator.
f.
Interpretation of Results: The reading through the scale
window corresponds to mg/liter of iron in the sample.
Figure 2-12. Color Comparator, High Range Test.
2-31
